Automatic telephone system



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AUTOMATIC TELEPHONE SYSTEM Filed March 24, 1952 2l Sheets-Sheet 2 STATIO N IDENTIFICATION WHEN DIGIT DESIGN ATED TOLL IS DIALLED ("0" IN THIS EXAMPLE) STATION REG. RLYS. WILL BEOOMEOOPERATED AS FOLLONS.

-DIALLING RLY. DIALING RL! PARTY 0 PE R. PARTY 0 PE R.

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ARNE OXAAL AT TYS.

Feb. 3, 1959 A. oxAAL 2,872,519

` AUTOMATIC TELEPHONE SYSTEM Filed March 24, 1952 21 Sheets-Sheet 3 IN VEN TOR. AR N E `OX AAL ATTYS.

Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE SYSTEM 21y sheets-smet 4 Filed March 24. 1952 R. m w. w. w28 llll Il o|- .b mz3 v 8N |I. wz: Hr EN $9. nw. Af -amxw w RN t. mz3 EN v $1 f 552.... wz: 3N

ARNE OXAAL ATTYS.

Feb. 3,1959 l A. oxAAL 2,872,519

AUTOMATIC TELEPHONE SYSTEM Filed March 24. 1952 21 Sheets-Sheet 5 LINE FINDER DISTRIBUTION RELAYS 254 JNVENToR. Anne oxAAl.

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coNTRoL RELAYs Fb. 3, 1959 A, OXAAL 2,872,519

I AUTOMATIC TELEPHONE SYSTEM f Filed March 24. 1952 21 Sheets-Shes?l '7 IDENT.

TERMINTION RELAY s'ELEcron lso SLPERVISORY INVENTOR. ARNE OXAAL A. oxAAL AUTOMATIC TELEPHONE SYSTEM 21'SheetS-Sheet 8 Feb. 3,' 1959' Filed March 24, 1952 Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHoNEfsYsTEM Filed March 24, 1952 21 Sheets-Sheet 9 mVENToR. ARNE OXAAL ATTYS.

Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE SYSTEM 21 Sheets-Sheet 10 Filed March 24, 1952 ome.

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INVENTOR. ARN E 0X AAL ATVTY S.

A. OXAAL AUTOMATIC TELEPHONE SYSTEM f Feb. 3, 1959 21 Sheets-Sheet 11 Filed March 24. 1952 Fb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE SYSTEM 21y Sheets-Sheet 12 Filed March 24, 1952 IDENTIFICATION TRANSMITTER RELAYS INVENToR. RN E OXAAL Ams Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE: SYSTEM 2l Sheets-Sheet 13 Filed March 24, 1952 IN V EN TOR. ARNE OXAAL ATT YS.

Feb. 3, 1959 A. OXAAL AUTOMATIC TELEPHONE SYSTEM Filed March 24, 1952 2l Sheets-$11661I 14 nas4 ` IN VEN TOR. v A RNE OXAAL Feb. 3, 1959 Filed March 24. 1952 A. OXAAL AUTOMATIC TELEPHONE SYSTEM 21 Sheets-Sheet 15 |291 PULSE HOLD ,|283 4293 V RELAYS ,|274

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ARME oxAAL www ATTYS Zl'SheetS-Sheet 16 Filed March 24, 1952 w mmom f ....3 mhz INVENTOR. AR NE OX AAL Y nD AT TY S,

Feb. 3, 1959 A. oxAAL 2,372,519

AUTOMATIC TELEPHONE SYSTEM Filed larch 24, 1952 21 Sheets-Sheet 17 Oog new ARNE OXAL TTYS.

Feb. 3, 1959 A. oxAAL 2,872,519

AUTOMATIC TELEPHONE SYSTEM Filed March 24. 1952 2l Sheets-Sheet 18 oFF NORMAL TRUNK w ANSWER |205' a l |25. PULSE HOLD 7 |240 245 RELYS |2 297' GOUNTING CHAIN INVEN'TOR. ARNE OXAAL ATTYS Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE SYSTEM Y 2l Sheets-Sheet 19 Filed March 24, 1952 Feb. 3, 1959 A. oxAAL AUTOMATIC TELEPHONE SYSTEM 2l Sheets-Sheet 2O Filed March 24. 1952 .m2 mi o 5%. mmo2 a 22.25.28 ...o 55..... .v

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